Messages

1

General / Re: Duplicated points in dense cloud

« on: July 28, 2020, 11:49:06 PM »

Been looking for an answer to this myself. Anyone?

D

2

Python and Java API / Re: Reprojection Errors (script x chunk info)

« on: December 11, 2019, 04:40:55 AM »

Hi Luiz,

It looks like the rms reprojection error in chunk info is calculated from the errors of all projections, not from point errors. To get the global rms value divide the sum of all projection errors by the total number of projections.

Code: [Select]

# Get point errors
error = math.sqrt(sum(point_errors[point_id]) / len(point_errors[point_id]))

# Get rms
# at start set err_sum = 0, num = 0
err_sum += sum(point_errors[point_id])
num += len(point_errors[point_id])

rms_error = math.sqrt(err_sum / num)

From this you can also get max reprojection error from chunk info. Now this leads to another question:
I understand how to remove tie points with a maximum reprojection error above a given threshold. This makes sense for points with only 2 projections, but for those with many projections, wouldn't it make sense to remove the projections with high errors and keep the rest? There is a way to remove tie points, and to turn off cameras, but is it possible to disable some projections associated with a given camera/tie point?

Any ideas?

Cheers!

3

General / Re: 3Dconnexion not found

« on: September 22, 2018, 06:31:38 PM »

Hi Alexey,

Good to know about the 3Dconnexion!

The job is still running in the background so I copied the output from the console and attached it here. The .txt file was huge so I deleted some lines from the middle.

4

General / 3Dconnexion not found

« on: September 22, 2018, 03:25:19 PM »

Hi all,

I'm building a dense point cloud (from 900,000 points), and the process seems to be stuck at 80%. It too <4hrs to reconstruct depth maps, and has been stuck on generating the point cloud for the last 5hrs. Last printed line is:
"filtering depth maps... 3Dconnexion framework not found!

I'm using a MacbookPro 2017 with AMD Radeon Pro 560. Could this be a problem with the GPU?
It seems to work fine to start with:

2018-09-21 20:25:55 OpenGL Vendor: ATI Technologies Inc.
2018-09-21 20:25:55 OpenGL Renderer: AMD Radeon Pro 560 OpenGL Engine
2018-09-21 20:25:55 OpenGL Version: 2.1 ATI-1.66.42
2018-09-21 20:25:55 Maximum Texture Size: 16384
2018-09-21 20:25:55 Quad Buffered Stereo: not enabled
2018-09-21 20:25:55 ARB_vertex_buffer_object: supported
2018-09-21 20:25:55 ARB_texture_non_power_of_two: supported
2018-09-21 20:25:55 Agisoft PhotoScan Professional Version: 1.4.4 build 6848 (64 bit)
2018-09-21 20:25:55 Platform: Mac OS
2018-09-21 20:25:55 CPU: Intel(R) Core(TM) i7-7820HQ CPU @ 2.90GHz (laptop)
2018-09-21 20:25:55 CPU family: 6 model: 158 signature: 906E9h
2018-09-21 20:25:55 RAM: 16.0 GB
2018-09-21 20:25:55 3Dconnexion framework not found!

That "3Dconnection..." line appears a few times in the console, but it so far the process didn't seem to be affected. Now I'm wondering if it's still running or if I should cancel the task and try again with the Intel GPU.

Any ideas on what's going on?

Thanks!